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Cornea
Cornea


Corneal injury

Definition:

Corneal injury is a wound to the part of the eye known as the cornea. The cornea is the crystal clear (transparent) tissue that covers the front of the eye. It works with the lens of the eye to focus images on the retina.



Causes:

Injuries to the cornea are common.

Injuries to the outer surface may be due to:

  • Abrasions: Includes scratches or scrapes on the surface of the cornea
  • Chemical injuries: Caused by almost any fluid that gets into the eye
  • Contact lens problems: Overuse, poor fit, or sensitivity to contact lens care solutions
  • Foreign bodies: Exposure to something in the eye such as sand or dust
  • Ultraviolet injuries: Caused by sunlight, sun lamps, snow or water reflections, or arc-welding

Infections may also damage the cornea.

You are more likely to develop a corneal injury if you:

  • Are exposed to sunlight or artificial ultraviolet light for long periods of time
  • Have ill-fitting contact lenses or overuse your contact lenses
  • Have very dry eyes
  • Work in a dusty environment

High-speed particles, such as chips from hammering metal on metal, may get stuck in the surface of the cornea. Rarely, they may penetrate deeper into the eye.



Symptoms:

Symptoms include:

  • Blurred vision
  • Eye pain or stinging and burning in the eye
  • Feeling like something is in your eye (may be caused by a scratch or something in your eye)
  • Light sensitivity
  • Redness of the eye
  • Swollen eyelids
  • Watery eyes or increased tearing


Exams and Tests:

You will need to have a complete eye test. The health care provider may use eye drops called fluorescein dye to help look for injuries.

Tests may include:



Treatment:

First aid for eye emergencies :

  • DO NOT try to remove an object that is stuck in your eye without professional medical help.
  • If chemicals are splashed in the eye, IMMEDIATELY flush the eye with water for 15 minutes. The person should be quickly taken to the nearest emergency room.

Anyone with severe eye pain needs to be seen in an emergency care center or examined by an ophthalmologist right away.

Treatment for corneal injuries may involve:

  • Removing foreign material from the eye
  • Wearing an eye patch or temporary bandage contact lens
  • Using eye drops or ointments prescribed by the doctor
  • Not wearing contact lenses until the eye has healed
  • Taking pain medicines


Outlook (Prognosis):

Most of the time, injuries that affect only the surface of the cornea heal very quickly with treatment. The eye should be back to normal within 2 days.

Injuries that penetrate the cornea are much more serious. The outcome depends on the specific injury.



When to Contact Medical Professional:

Call your health care provider if the injury is not better after 2 days of treatment.



Prevention:
  • Wear safety goggles at all times when using hand or power tools or chemicals, during high impact sports, or during other activities where you may get an eye injury.
  • Wear sunglasses that screen ultraviolet light when you are exposed to sunlight. Wear this type of sunglasses even during the winter.
  • Be careful when using household cleaners. Many household products contain strong chemicals. Drain and oven cleaners are very dangerous. They can lead to blindness if not used properly.


References:

Engel K, Page, M, Montezuma S, Cameron JD. Surgical and Nonsurgical Trauma. In: Tasman W, Jaeger EA, eds. Foundations of Clinical Ophthalmology. 2013 ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2013:vol 3; chap 6.

Vinger PF. The Eye and Sports Medicine. In: Tasman W, Jaeger EA, eds. Duane's Ophthalmology. 2013 ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2013:vol 5; chap 45.

Yanoff M, Cameron D. Diseases of the visual system. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 431.




Review Date: 9/2/2014
Reviewed By: Franklin W. Lusby, MD, ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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Morristown Medical Center

100 Madison Avenue
Morristown, NJ 07960
973-971-5000

Overlook Medical Center

99 Beauvoir Avenue
Summit, NJ 07901
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Newton Medical Center

175 High Street
Newton, NJ 07860
973-383-2121

Chilton Medical Center

97 West Parkway
Pompton Plains, NJ 07444
973-831-5000

Goryeb Children's Hospital

100 Madison Avenue
Morristown, NJ 07960
973-971-5000

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